题目内容
(请给出正确答案)
[主观题]
In doing mouth-to-mouth breathing, you have to ______ .A.open your mouth wideB.take a deep
In doing mouth-to-mouth breathing, you have to ______ .
A.open your mouth wide
B.take a deep breath
C.blow into his lungs
D.do' all of the above
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